Home / 1,026,431,998.80-1,539,647,998.20-618,285,310.80

Finding the Fourth Proportional to 1,026,431,998.80, 1,539,647,998.20 and 618,285,310.80

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Solution

The fourth proportional to 1,026,431,998.80, 1,539,647,998.20 and 618,285,310.80 is: 927,427,966.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,026,431,998.80 : 1,539,647,998.20 = 618,285,310.80 : x
  2. Step 2: Convert to fraction form
    1,026,431,998.80/1,539,647,998.20 = 618,285,310.80/x
  3. Step 3: Cross multiply
    1,026,431,998.80x = 1,539,647,998.20 × 618,285,310.80
  4. Step 4: Simplify right side
    1,026,431,998.80x = 951,941,741,089,684,736
  5. Step 5: Solve for x
    x = 951,941,741,089,684,736/1,026,431,998.80
  6. Step 6: Final answer
    x = 927,427,966.20

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.